Apparatus for pumping water



(No Model.) I 2 Sheets-Sheet 1.

vTVI. T. CHAPMAN.'

APPARATUS FOR PUMPING WATER.

Patented O0t.r12l,1897.

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z sheets-sheet '2.

Patented Oct. l2, 1897.

* (No Model.)

` M'. TL CHAPMAN.

, APPARATUS POR PUMPING WATER.

l rangement of the pumping-apparatus.

45 is a cross-section on line 5 5 of Fig. 4.

UNI-TED .STATES i PATENT OFFICE.

MATTI-IEW T. CHAPMAN, OF AURORA, ILLINOIS.

APPARATUS FOR PUMPING WATER.l

SPECIFICATION forming part of Letters Patent No. 591,382, dated October 12, 1897. Application led May 4, 1894. Serial No. 510,118. (No model.)

tion, reference being had to the accompanying drawings, in which- Flgure 1 is a vertical section showing the upper portion of a well. Fig. '2 is a vertical section showing the lower portion of the well.

Fig. 3 is an enlarged detail, being a crosssectlon on line 3 3 of Fig. 2. Fig. 4 is a partial vertical section showing a moditied ar- Fig.

My invention relates to the raising of water from wells, and is intended particularly for use in raising water from deep wells by the use of compressed air. Attempts have heretoforebeen made to make use of compressed air in raising water from Wells, but so far as yIam aware no great degree of success has attained such efforts, owing to the fact that the apparatus employed has not been such as to secure the best results. For raising water from deep wells it has been found more satis.- factory to make use of amore or less complicated system of pumps, necessitating the use of extensive plants for operating the pumps, and making the expense of operating a well considerable. Manyobjections arise from the use of pumps in ldeep wells, one of the most important of which is the' rapid wear upon the valves and plungers owing to the presence of sand and sediment in the wells.

The object of my invention is to provide improved apparatus by means of which the method of raising Water by compressed air will be made practicable; and to this end vmy invention consists in improvements hereinafter pointed out. g

That which 1 regard as new will be set forth in the claims. f Y

In the drawings, 7 indicates the outer tube of the Well. v Y Sindicates an inner Well-tube, the lower portion of which is preferably enlarged, forming a chamber 17 as shown in Fig. 2.

24 indicates a tube which is connected to the lower end of the tube 8 by a coupling 25, i

as shown in Fig. 2. The tube 24 carries at its lower enda plug 9, which forms lthe seat for a ring-valve 10. Resting upon the ring 10 is a second ring 11 of less diameter, and

within the ring 1l isa stern 12, as shown inv Figs.' 2 and 3.

13 indicates a central rod which passes through the stem 12 and is connected at its lower' end to a block 14, secured to the plug 9 byarms 15. Water rising in the well-tube 7 may lift the rings 10 and 11, passing to the upper side of the valve, where it will be held.

As best shown in Fig. 3, the upper ring 11 is provided with a circular opening at its center to receive the stem 12, said stem being provided with depressions 16 at suitable points upon its surface. As shown in Fig. 2, the lower edge of the stem 12 is Iiared, and the adjacent portion of the 'ring 11 is beveled to fit snugly upon the iiared portion of the stem 12. By this arrangement when the ring 11 is lifted water may pass both around the outer edge of said ring or between the ring and the stem 12 through the passages formed by the depressed yportions of the stem. Vhen, however, the ring 11 is in its seat, water will be prevented from passing down.

1S indicates an air-tube arranged within the inner tube 8, which air-tube is preferably made up of sections 19 2O 21, connected by couplings 22, as shown in Fig. 1. Any suitable number of sections may be used, but I have generally found three to be sufficient. The lower coupling 22 passes through the chamber 17 and communicates bya tube 23 with the upper portionof the tube 24, so that the tube 24 is practically a continuation of the air-tube 1S, as shown in Fig. 2. .26 indicates a tube the upper end of which opens into the chamber 17, so that the tube 26 is practically a continuation of the tube 8. The lower end of said tube opens into the lower portion of the tube 24. The tube 26 is preferably provided with a nozzle 27. KK As best shown in Fig. 2, the nozzle'27 is provided with an internal circular wall 28 and with openings 29 in its periphery.

In using my improved apparatus the welltube 7 is first sunk in the Well, after which the internal tube 8, having at its lower end the tube 24, is inserted in the well until the IOO valve at the lower end of the tube 24 lies at such a depth that the water in the well will rise above the valve. Air is then forced into the tube 18 through an inlet-pipe 30 and will be discharged into the lower portion of the tube 26 through the nozzle 27. In cases where the pressure of the water is sufficient to cause the water to rise in the well to a point above the openings 29 the air will press down upon the water in the tube 24, thereby forcing the water up in the tube 2t', through the chamber 17 to the inner tube 8, and thence Vout through the delivery-pipe. hen the water in the tube 24 sinks below the level of the openings 29, the air in the tube 24 will pass through such openings into the tube 26, being directed upward by the inn'er wall of the nozzle,thereby' forcing the water up into the inner tube 8 and out through the discharge-pipe.

I have found in practice that the air intermingling-with the water will cause it to effervesce, lightening it so much that even when the water has risen high enough to fiow from the well the pressure upon the valve-rings 10 and 11 will be diminished sufficiently to permit the water below the valve under its natural pressure to lift such rings and to iiow into the pipe 24, so that there will be practically a continuous flow of water through the valverings 10 and 11, and a continuous iiow from the well will also be obtained.

Instead of forcing air in through the pipe 30 and causing the discharge of the water through the pipe 31, it is evident that the operation may be reversed.

In some instances the head of water is great enough to cause the water to rise high in the well. In such cases it is desirable to inject the air into the upper portion of the inner welltube. I have therefore provided the sections 19 2O 21 of the air-tube with perforations 32 33 34, respectively, the perforations 32 being located slightly above the middle of the section 19, the perforations 33 slightly below the middle of the section 20, and the perforations 34 near the lower end of the section 21. Within the sections 19 2O 21 are slide-valves 35 36 37, respectively, which valves are connected by rods 38, as best shown in Fig. 1. The slide-valve 35 is connected to a rod 39, which rises through a stuffing-box 40 at the upper end of the air-tube, and is adapted to be moved vertically by a hand-wheel 41, fitted upon the screw-threaded upper end of the rod 39 and mounted in a suitable frame 42. The arrangement is such that by rotating the hand-wheel 41 the slide-valves 35 3G 37 will be moved vertically in their respective sections.

lVhen the slide-valves 35 3G 37 are in the position shown in Fig. 1, it will be observed that the air from the tube 18 will be permitted to escape through the lowermost openings 34. If it is desired to inject the air into the water at a higher point, by raising the valves in the tube 18 to a higher point by moving the rod 39 vertically the perforations 33 may be exposed, the perforations 32 remaining still closed by the valve 35. B y moving the rod 39 still higher the perforations 32 may be opened, permitting the air to escape at the highest point, as would be desirable in case the water should risc in the tube 8 to a point slightly above the perforations 32.

It is obvious that the arrangement of the slide-valves and perforations may be varied without departing from the spirit of my invention, and I do not, therefore, wish to limit myself to arranging such parts specifically as shown.

In Figs. 4 and 5 I have shown a modified arrangement of the well and air tubes, the operation of which, however, is substantially the same as above described.

55 indicates a well-tube.

44 indicates a strainer-tube which is fitted into the lower end of the tube 55 and carries a suitable strainer 45. rlhe tube 44 is connected to a sleeve 4G,which is loosely mounted upon the lower cylindrical portion 47 of a wedge 48, the wedge 48 being adapted to lit into and expand a ring-packing 49. As shown in Fig. 4, the wedge 48 is hollow, and its upper portion forms the seat of a valve 50.

51 indicates a cage for the valve 50.

52 indicates a collar upon the lower end of the cylindrical portion 47 of the wedge 48.

53 indicates. an air tube which passes through the tube 55 and is connected at its lower end to a cylinder 54, which rests upon the cage 51. Compressed air being introduced through the pipe 53 passes around the lower end of said pipe into the pipe 55, foreing water up through it. In case the water rises in the pipe 53 the air-pressure will force the water down in said pipe into the pipe 55.

I do not limit myself to the use of an exterior tube 7, as the ordinary walls of a well may serve in place of such tube.

In order that the passages between the ring 11 and the stem 12 may not be closed should said ring be lifted into contact with the iiange at the upper end of the stem 12, a series of lugs 60 are provided at the under side of said riiange, as best shown in Fig. 2, so that the ring 11 is prevented from moving up into contact with said flange. Furthermore, said flange is provided with a series of depressions opposite the depressions in the stem 12 in order to afford an unobstructed passage for the flow of Water.

That which I claim as my invention, and desire to secure by Letters Patent, is-

1. In an apparatus for raising water from wells,the combination with a tube 2G arranged in the bottom of the Well, a tube 8 communieating with the top thereof and extending to the top of the well, a tube 18 arranged within the tube 8 and extending from the top of the well to and communicating with the upper end of a tube 24 surrounding the tube 2G, substantially as described.

2. In an apparatus for raising water from wells, the combination with a tube 8 extend- IOO IIO

ing from the top of the well to near the bottom thereof, a tube 24 arranged inthe bottom of the well and connected to the lower end of the tube 8, a tube 18 extending down through the tube 8 and communicating at its lower end with the upper end of the tube 24, and a tube 26 arranged within the tube 24 and opening at its lower end into the latter and communicating at its upper end with the tube 8, substantially as described.

3. In an apparatus for raising water from wells, the combination with a tube 18 extending from the top of the well to near the bottom thereof, a tube 24 arranged in the bottom of the well and communicating at its upper end with the bottom of the tube 18, a tube 8 surrounding the tube 18, a tube 26 arranged within the tube 24 and opening thereinto at its lower end and at its upper end communicating with the tube 8, a valve controlling the opening in the lower end of the tube 24, and a nozzle 27 having perforations 29 and opening into the lower end of the tube 26, substantially as described. v

4. In an apparatus for raising water from wells, the combination with a tube 18 extending from the top of the Well to near the bottom thereof, a tube 24 arranged in the bottom of the well and communicating at its upper end with the bottom of the tube 18, a tube 8 surrounding the tube 18, a tube 26 arranged within the tube 24 and opening thereinto at its lower end and at its upper end communicating with the tube 8, a valve controlling the opening in the lower end of the tube 24,

` and a nozzle having concentric inner and outer tubes, the inner tube opening into the lower end of the tube 26 and the outer tube having perforations 29, substantially as described.

5. In an apparatus for raising water from wells, the combination with a tube 18 extending from the top of the well to near the bottom thereof, a tube 24 arranged in the bottom of the well and communicating at its upper end with the bottom of the tube 18, a tube 8 surrounding the tube 18, a tube 26 arranged within the tube 24 and opening thereinto at its lower end and at its Aupper end communicating with the tube 8, a valve controlling the opening in the lower end of the tube 24, and a nozzle having its lower end arranged above said valve and its upper end directed into the lower open end of the tube 26, substantially as described.

6. In an apparatus for raising water from wells, the combination with a tube 18 extending from the top of the well to near the bottom thereof, a tube 24 arranged in the bottom of the well and communicating at its upper end with the bottom of the tube 18, a tube 8 surrounding the tube 18, a tube 26 arranged within the tube 24 and opening thereinto at its lower end and atits upper end communicating with the tube 8, a valve controlling the opening in the lower end of the tube 24, and a nozzle arranged above the valve and comprising an inner and outer concentric tube, the inner tube being open at its opposite ends and directed at its upper end into the lower open end of the tube 26, and the outer tube being closed at its lower end and provided with pverforations 29, substantially as described.

7. In an apparatus for raising Water from wells, the combination with the tube 24 arranged iu the bottom of the well, and havingv as described.

MATTHEW T. CHAPMAN.

Witnesses:

GEORGE WTLDER, F. BROWN.

'the lower end of the tube 26, substantially 

